Milorad Stevanović, Triangle centers associated with the Malfatti circles,
Forum Geometricorum 3 (2003) 83--93.

Abstract:  Various formulae for the radii of the Malfatti circles of a triangle are presented. We also express the radii of excircles  in terms of the radii of the Malfatti circles, and give the coordinates of some interesting triangle centers associated with the Malfatti circles.

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